Electric baker for surgical purposes.



No. 775,105. PATENTED Nov. 15, 1904.- W. s. EDMANDS R C. A. RCYT. 1

- ELECTRIC BAKER PCR SURGICAL PURPOSES.

APPLICATION FILED DEO.17, 1902.

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b 5% i l l No. 775,105. PATENTED NOV. l5, 1904.

W. S. EDMANDS a C. A. HOYT.

ELECTRIC BAKERFOR SURGICAL PURPOSES.

APPLICATION FILED DBC. 17, 1902. N0 MODEL. 2 SHEETS-SHEET 2,

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UNITED STATESA PATENT QEETCE.

WALTER s. EDMANDs, or NEWTON, AND CHARLES A. HOYT, OE RosToN, MAssAoHUsETTs, AssIeNoRs, BY DIRECT' AND MEsNE AssieNMENTs, To EDWARD T. EDMANDs, oF NEWTON, MASSACHUSETTS, AND JUNE HoYT.

ELECTRIC BAKER FOR SURGICAL PURPOSES.

SPECIFICATION forming part of Letters l'jfatent No. 775,105, dated November 15, 1904. Application filed December 17, 1902. Serial No. 185,600. (No model.)

T 1f/Z whom may @Ow'bf apparatus embodying the invention. Fig. 2 Be it known that we, WALTER S. EDMANDs, shows the said apparatus in side elevation with residing at Newton, county of Middlesex, and the cover-sheets and lining in place. Fig. 3 5o CHARLES A. HOYT, residing at Boston, county shows in side elevation the switch, hereinafter of Suffolk, State of Massachusetts, citizens of described, by means of which the action of the United States, have invented a certain new the apparatus is controlled. The cover of the and useful Improvement in Electric Bakers working parts of the switch is omitted in orfor Surgical Purposes, of which the following der to show the said working parts. Fig. 4 55 is a specification, reference being had therein shows in plan the switch which is represented IO to the accompanying drawings. in Fig. 3. Fig.' 5 is an elevation looking from ln the treatment of rheumatism, inflamed the left-hand side in Fig. 3. or stiff joints, water in the joints, bruises, and Our apparatus has a sectional saddle-shaped certain other 'classes of cases the part of the frame, the curved parts or sections of the said 6o human body which is affected is sometimes frame being movably connected with each I 5 subjected to heat for the purpose of inducing other, so as to enable them to be adjusted relaor increasing circulation in the said part, tively to each other to suit the portion of the stimulating secretions, occasioning or promothuman body which is required to be treated ing absorption, or otherwise securing a return with the aid of the apparatus. The construc- 65 to normal functions and conditions, and theretion and the precise means of connecting and by bringing about relief ora cure. adjusting the parts or sections of the appara- The invention relates to apparatus for aptus may vary more or less in practice. plying heat for the purposes stated; and the In Figs. 1 and 2 the two curved segmental invention consists in asurgical heater or baker sections 1-2 12 are connected together pivotally 7o of the improved construction hereinafter deat their upper ends by means of the rod 13 and scribed and claimed, in which the effect of the the pivotal screws 14 14, the screw-threaded heat is aided and enhanced by causing the heat inner ends of the said screws entering screwto be applied and .to act in the presence of threaded holes that are tapped` in the opposite strong and intense light, the heat and light ends of said rod 13 lengthwise of the rod. 7 5 both emanating from bodies which are em- The sections 12 12 may be swung relative to 3Q braced in an electric circuit and are rendered 'each other upon their pivotal connections to incandescent by the closing of such circuit. thereby expand or contractthe apparatus to The advantages of causing the heat to act in the required width. Each section is shown the presence of strong light are that by the composed of two side bars 121 121, having the. 8o action of heat and light combined greater heat and light producing bodies applied therepenetration of the heat at a given temperature to,'and tying and spacing rods 122 122, by is secured than where heat is applied without which the lower ends of said side bars are light, enabling the desired results to be atconnected and held at the proper distance tained at a lower temperature than otherwise apart. Each of the rods 122 122 fits between 85 would be effectual and also enabling better the opposite inner faces of the side bars 121 results to be attained than heretofore. 121 of the section, and the respective ends of The invention provides a compact and simsaid rods are secured to the said side bars by ple apparatus adapted for handy and convenscrews 123 123, passing inwardly through ient application to any part of the body. holes in the side bars and entering screw- 90 The accompanying drawings illustrate an threaded holes which are tapped in the ends embodiment of our invention. of the rods. The side bars are composed each In the said drawings, Figure 1 shows in plan of an inner strip of brass or other suitable with the cover-sheets and lining removed an material 124 and an outer stripv125 of vulcanized liber or the like, although we do not limit ourselves in these respects in the construction o't' the sections. rl `he upper ends ot' the side bars overlap. The opposite ends otl the rod 13 malte contact with the inner sides of the innermost strips at the joints at the opposite ends of the apparatus, and thereby hold the upper ends o1C all the side bars properly spaced apart, the pivotal screws 14 14, having plain barrels 141,occupying theholes that are made through the overlapping portions of the side bars oitl the opposite sections. The means and manner oi keeping' the sections in their position of adjustment may vary in practice. Herein we have shown a convenient form of latch comprising' a spring-strip 16, which is secured at one end, as by a screw or screws 161 161, to the outer side of one of the side bars, the said spring-strip 16 being provided with a pin, as 162, which works within a hole, as 163, in the said side bar, the adjacent overlapping portion of the other side bar having a circular series of holes, as 164 164, te., to receive the eng'aging' end of the said pin. For convenience in moving' the spring-strip 16 in manipulating the latching device the said spring-strip is furnished with a knob or head, as 165.

The manner of arranging' the heat and light producing bodies upon the respective sections of the apparatus shown in Figs. 1 and 2 may vary in dil'ierent eases. Herein a simple arrangement of the said bodies is shown. Thus a series of sockets 61 61 is mounted upon the inner face of each side bar 121 of each section, and to the said sockets are applied incandescent electric-light lamps 62 62, extending' in the direction of the length ot' the apparatus, the said lamps being' herein of the elongated cylindrical form sometimes termed L 7, s

candles or bung-holelamps and overlapping' with one another for a portion ot' their length. The lamps 62 62 are connected electrically in asuitable circuit or circuits for the purpose of enabling' the degree of heat and light to be varied when required. VThe said lamps are provided with electrical connections arranged and contrived to permit a part or the whole of the entire number of lamps to be rendered operative at one time, as may be required. Thus the lamps of 'the side bars at one side of the apparatus constitute one group and those of the side bars at the other side of the apparatus constitute the second group, each group being' embraced in a separate circuit or branch circuit. Switch connections are provided whereby to enable either or both of the said groups to be turned on or orf in use, as desired. -The switch connections may vary in practice in some cases, although we prefer to employ a single switch of a construction enabling' the diiierent groups of the lamps to be turned on successively by successive movements of the handle or button of said switch and to be turned oft similarly. A

switch ot' suitable character is illustrated in Figs. 3, 4, and 5 o'tl the drawings. In the said iigures, 181 is a binding-post for one line-wire 7 oi' the electric circuit, and 182 183 are binding-posts for the branch wires 71 72, leading, respectively, to the two groups into which the lamps are divided. Each of the said binding'- posts has a pair of yielding contact blades or lips, as 184 184, between which a contactpiece carried by the moving' member 185 of the switch is adapted to enter. The said moving' member is centrally located and is provided with a button or handle, as 186, for enabling' the same to be turned by hand. r1`he movable switch member 185 is provided with a bottom series or' contact-points or arms, as 187 187", &c., and a top series 188 188", &c., and has in addition a single contact-point or arm 189. The contact-points or arms 187 are located and rotated in one plane, which latter corresponds with the plane ot' the contactblades 184, carried by the binding-post 181 for the line-wire 7. The series of contact-points or arms 188 are located in a second plane, which latter corresponds with that ot' the contact-blades or arms 184 of the binding-post 182, pertaining to one group of lamps. The single arm or contact-point 189 is in a third plane, which corresponds with that of the contactblades or arms 184, carried by the bindingpost 183, pertaining to the second group of lamps. The various contact-points or arms 187, 188, and 189 on the moving switch member are so disposed upon the said switch member that in one position of the latter all of the contact-points or arms carried thereby are out of contact with the contact-points or arms ot' the three binding-posts. An advance ot' the movable member of the switch into a given position would place one of the contact-points thereof, as 187, in engagement with the contact-blades or' the binding-post 181 'for the line-wire 7,-and one of the contact-points, 188, ot the said movingswitch member in engagement with the contact-blades of the bindingpost 182 for the branch wire 71, leading' to one of the groups ot' lamps, thereby placing' the said group in circuit. A second advance of the moving' switch member would place a second contact-point, as 187 on the same in engag'ement with the contact-blades of the binding-post 181 for the line-wire 7 another ot' the contact-points, as 188, in engagement with the contact-blades of the binding-post 182 for the said group of lamps, and also the single contact-point 189 of the said moving switch member in engagement with the contact-blades of the binding'- post 183 for the branch wire 72, leading to the other group of lamps. In this position of the moving switch member both groups of lamps will be turned on. Another advance of the moving switch member will move the arm or contact-point 189 out of engagement with the contact-blades of the binding-post 183 for the wire 72, lead- IOO ing to the second group of lamps, thereby turning olf the said group, while the iirst group will still remain turned on through the engagement of one of the contact-points, 188C, of the moving switch member with the contact-blades of the binding-post 182 of the wire 71, pertaining to the said first group of lamps, and the engagement of one of the contactpoints, 187C, with the contact-blades of the binding-post 181, pertaining to the line-wire 7. Another advance of the moving switch member will carry the same into a position in which all of the contact-points thereof are out of engagement with the various contactblades of the different binding-posts, and in this position of the moving switch member all of the lamps will be turned olf. Inasmuch as switches of this type are known in the art, being used in connection with electroliers, &c., it is unnecessary to present the construction of the switch in detail or to go further into the mode ofoperation of the same. The particulars of construction and of operation are not material to the present invention and may be as heretofore or as may be preferred.

Each section is provided with a cover-sheet 17, inclosing the space between the two side bars of such section. The said cover-sheets 17 17, if desired, may be lined with white asbestos, as at 171, to reflect the heat and light inwardly, while the space between the upper ends of the opposite cover-sheets, if desired, is closed by a section of flexible asbestos cloth or other `suitable material, as at 17 2, which may be constituted by a portion of the said lining material. In use a suitable coveringcloth, of asbestos or the like, usually is thrown over the apparatus and the part of the human body under treatment therein, although in some uses of the apparatus the cover is dispensed with in practice. A

The apparatus is suspended from above by wires or the like, two such wires being indicated in part at 18 18, the same being connected with the tie-rod 13 and extending upwardly therefrom. By means of said wires the apparatus may be raised or lowered, as required, and is or may be supported thereby when not in use. By reason of supporting the apparatus from above through the agency of a suspensory support the use of stands or the like is rendered unnecessary. Stands are inconvenient at times and ,are more or less trouble to place where required for adjusting an apparatus of this class to the patient who is treated. When the apparatus is hung from above by means of a suspensory cord or wire, it admits of readily being raised or lowered and of being swung or shifted in any direction, whilein being applied it may be placed kin any position made necessary by the part of the human body which is required to undergo treatment or the conditions of use.

We claim as our invention- 1. The improved surgical baker comprising the opposite side sections hinged together at the upper ends thereof and adjustable toward and from each other to vary the distance between them, and provided with means of holding the same in their position of adjustment.

2. The improved surgical baker comprising the opposite side sections hinged together at the upper ends thereof and adjustable toward and lfrom each other to vary the distance between them, and provided with means of holding the same in their position of adjustment, of the overhead suspensory support.

3. The improved surgical baker comprising the opposite side sections hinged together at the upper ends thereof and adjustable toward and from each other about their hinged connections, provided with means of securing the said sections in their position of adjustment, havingthe electric elements electrically connected in groups comprising each a plurality of such elements, and provided with switch l 

